Monkey chair



y-' 1951 M; J. HOSKO, JR 2,982,248

MONKEY CHAIR 2 Sheets-Sheet 1 Filed July 9, 1958 INVENTOR.

r J WW S m N MK h .m W Y B ATTORNEY.

May 2, 1961 M. J. HbsKo, JR

MONKEY CHAIR 2 Sheets-Sheet 2 Filed July 9, 1958 FIG.4

FIG.7

FIG.6

ATTOR NEY.

United States Patent 0.:

MONKEY CHAIR Michael J. Hosko, Jr., Philadelphia, Pa., assignor to American Home Products Corporation, New York, N.Y., a corporation of Delaware Filed July 9, 1958, Ser. No. 747,405

6 Claims. (Cl. 119--96) This invention relates to a monkey chair adapted to restrain a monkey or similar animal to a limited degree.

It is an object of the invention to provide a restraining chair for use in animal'experimentation on monkeys and related animals which will permit the maximum freedom of movement consistent with the experimental purposes and exert the necessary restraint in a humane way. The chair can be used with any animal which can be maintained in a sitting position, but is especially adapted for use with monkeys and apes.

It is a particular object of theinvention to provide a restraining chair for monkeys which will afford the occupant a wide latitude of movement but prevent it from reaching the top of its head with its hands, from bending its spine and from crossing its legs.

It is a further object of the invention to provide such a restraining chair which has adjustable parts, permitting it to be adjusted for different kinds and degrees of restrain and for animals of different sizes.

It is an additional object of the invention to provide such a restraining chair which is economical to construct and which can readily be kept in a sanitary condition.

Other objects and advantages of the invention will be apparent from the following disclosure.

The chair comprises a base, a frame with fixed vertical rods mounted on the base, horizontal upper and lower plates provided with suitable openings and adjustably mounted on the vertical rods, an adjustably mounted seat and other ancillary elements as described below. I

The accompanying drawing represents a preferred embodiment of my invention, but it and the accompanying description are intended to be illustrative only and not to limit my invention, the scope of which is defined in the appended claims.

In the drawing:

Fig. l is a side elevation of my monkey chair;

Fig. 2 is a section on an enlarged scale on the line 22 of Fig. 1;

Fig. 3 is a perspective view partly broken away, of my monkey chair showing a monkey seated in it;

Fig. 4 is a view from above of the lower plate;

Fig. 5 is a view from above of the upper plate;

Fig. 6 is a view of the pelvic clamp;

Fig. 7 is a view of the neck clamp; and

Fig. 8 is a view of a hand hole cover.

As shown in Figs. 1-3, four vertical rods 1, 2, 3 and 4, are fixedly mounted on rectangular base 5, the two front rods 1, 2 being mounted near the corners of the base and the two rear rods 3, 4 being spaced closer together near the rear edge of the base. braces 6, 7 maintain the spacing of rods 1 and 2 throughout their height; similarly braces 8, 9 connect rods 2, 3, braces 10, 11 connect rods 3, 4 and braces 12, 13 connect rods 4, 1. These braces are adjustably con- Horizontal nected to the rods by conventional clamps 14, such as are used in setting up laboratory apparatus.

Lower plate 15 and upper plate 16, preferably of a transparent material such as a synthetic plastic, are adjustably mounted for vertical movement on rods 1, 2, 3 and 4 by means of flanged fittings 17, each provided with conventional clamping means.

Lower plate 15, in addition to the four holes for the four rods 1, 2, 3, 4, is provided with a large central hole 18 to permit passage of a monkeys pelvis; a line of screw holes 19 is also drilled in plate 15 to permit the adjustable mounting of vertical footrest plate 20 "below plate 15, and four holes 21 are drilled for adjustably securing pelvic clamp 22 on top of plate 15.

Plate 20 carries an adjustable footrest 23 secured in one of several holes 24 in the plate.

Pelvic clamp 22 is generally U-shaped, the space 25 between the two arms being of a size to accommodate the waist of a monkey in the chair. Near its front corners the clamp has two slots 26 which may be made to register with the'two front holes 21 of plate.15, and each arm of the clamp has a line of holes 27 any corresponding pair of which in opposite arms may be made to register with the rear holes 21 in plate 15. By the use of suitable screws and nuts 28 the clamp may thus be secured to plate 15 in a position suitable for the size of monkey in the chair.

Upper plate 16, in addition to the four holes for rods 1, 2, 3, 4 is provided with a head hole 29 and two hand holes 30. Screw holes 31' are also drilled in plate 16 for adjustably securing neck clamp 32, and screw holes 33 for adjustablysecuring a pair of hand clamps 34.

Neck clamp 32 is similar to pelvic clamp 22 in principle and is adjustably secured to plate 16 by screws and nuts 37 passing through holes 31 in plate 16 and through a slot 38 and a suitable pair of holes in the lines of holes 39 in the clamp.

Slots 35 in the hand clamps 34 permit the clamps to be secured to plate 16 in a suitable position to prevent withdrawal of the hands of a monkey seated in the chair when restraint of the hands is required; this is accomplished by screws and nuts 36, the screws passing through holes 33 in the plate and slots 35 in the clamps. When hand holes 30 are left open, the monkey is able to feed itself from food placed on plate 16.

A seat 40 is adjustably mounted on rods 3 and 4 by means of horizontal rods 41 and clamps 42. The seat is formed of a U-shaped sheet of metal 43 between the arms of which extend two horizontal bars 44 on which the monkey sits. This arrangement permits ready collection of feces and urine, avoids serious fouling by excreta and provides for easy cleaning.

In use, the monkey is seated on seat 40, its feet resting on footrest 23, its lower torso projecting through hole 18 in lower plate 15, its head and neck projecting upward through hole 29 and, when required, its hands projecting upwards through holes 30 in upper plate 16.

A monkey seated in the chair without hand restraint is shown in broken lines on Fig. 3.

The heights and spacing of plates 15 and 16, seat 40 and footrest' 23 are adjusted to suit the individual monkey. Clamps 22, 32 and 34 are secured in position to provide the minimum restraint consonant with the purpose for which the animal'is being used. With this chair it has been possible to maintain monkeys for a considerable period in good physiological and psychological health.

I claim:

l. A restraining chair adapted to provide adjustable limited restraint for monkeys and similar animals comprising: a base, a framework consisting of a plurality of vertical parallel rods fixedly mounted on the base, a seat,

a lower plate provided with a pelvic hole, an upper plate provided with a neck hole, the seat and plates being independently adjustably mounted on and supported by said vertical parallel rods.

2. A restraining chair adapted to provide adjustable limited restraint for monkeys and similar animals comprising: a base, a framework consisting of a plurality of vertical rods fixed on the base, a seat mounted for vertical adjustment on and supported by the framework, a lower plate provided with a pelvic hole mounted for vertical adjustment on and supported by the framework above the seat, a pelvic clamp adjustably mounted on the lower plate, an upper plate provided with a head hole mounted for vertical adjustment on and supported by the framework above the lower plate and a neck clamp adjustably mounted on the upper plate.

3. A restraining chair as defined in claim 2 in which the vertical rods of the framework pass through holes in the upper and lower plates, said holes being provided with flanged fittings having clamping means.

4. A restraining chair as defined in claim 2 in which the pelvic clamp and neck clamp are generally U-shaped plates mounted respectively on said lower and upper plates for sliding adjustment to cooperate respectively with the pelvic hole and the head hole in the lower and upper plates, and in which the upper plate is additionally pierced by two hand holes and provided with two hand clamps, the two hand clamps being generally J-shaped plates mounted on said upper plate for sliding adjustment to cooperate with the hand holes.

5. In combination with the restraining chair defined in claim 2, an adjustable footrest depending from the lower plate.

6. A restraining chair adapted to provide adjustable limited restraint for monkeys or similar animals comprising: a fiat horizontal base, four vertical rods fixed on the base, a seat mounted for vertical adjustment on two of the vertical rods, a lower plate above said seat adjustable vertically on the four vertical rods which pass through four holes provided in the plate, the holes being provided with flanged fittings having clamping means, a pelvic hole provided in the plate above said seat, a U- shaped pelvic clamp slidably mounted on said lower plate for adjustable cooperation with the pelvic hole, an adjustable footrest depending from said lower plate, an upper plate adjustable vertically on the four vertical rods which pass through four holes provided in the plate, the holes being surrounded by flanged fittings having clamping means, a head hole in the upper plate above the pelvic hole in the lower plate and two hand holes in the upper plate spaced from the head hole, a U-shaped neck clamp slidably mounted on said upper plate for adjustable cooperation with the head hole, and two J- shaped hand clamps slidably mounted on said upper plate for adjustable cooperation with the hand holes.

References Cited in the file of this patent UNITED STATES PATENTS 1,167,488 Ferguson Jan. 11, 1916 2,665,742 Starysky Jan. 12, 1954 2,728,377 Thompson Dec. 27, 1955 

